New terrorism laws allow police to hold suspects for a fortnight without charge

Melbourne man arrested in terror raid

WA has had detention laws since 2005, after a string of bombings, including those in Bali and London.Credit: 7NEWS

Western Australia's laws to deal with terrorists will be hardened under new legislation to go before state parliament.

The public is being assured that the laws are not being introduced due to any heightened risk of an incident in WA.

Watch in the video above: Melbourne man arrested in terror raid

Police will more easily be able to detain suspected terrorists and will be able to hold suspects without charge for up to two weeks on suspicion of an attack, even if they don't know the suspect's name or full details.